2 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3 * Copyright (C) 1999-2003 Hiroyuki Yamamoto & the Sylpheed-Claws team
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
36 typedef struct _PrivacyDataPGP PrivacyDataPGP;
38 struct _PrivacyDataPGP
42 gboolean done_sigtest;
44 GpgmeSigStat sigstatus;
48 static PrivacySystem pgpmime_system;
50 static PrivacyDataPGP *pgpmime_new_privacydata()
54 data = g_new0(PrivacyDataPGP, 1);
55 data->data.system = &pgpmime_system;
56 data->done_sigtest = FALSE;
57 data->is_signed = FALSE;
58 data->sigstatus = GPGME_SIG_STAT_NONE;
59 gpgme_new(&data->ctx);
64 static void pgpmime_free_privacydata(PrivacyData *_data)
66 PrivacyDataPGP *data = (PrivacyDataPGP *) _data;
71 static gboolean pgpmime_is_signed(MimeInfo *mimeinfo)
76 PrivacyDataPGP *data = NULL;
78 g_return_val_if_fail(mimeinfo != NULL, FALSE);
79 if (mimeinfo->privacy != NULL) {
80 data = (PrivacyDataPGP *) mimeinfo->privacy;
81 if (data->done_sigtest)
82 return data->is_signed;
86 parent = procmime_mimeinfo_parent(mimeinfo);
89 if ((parent->type != MIMETYPE_MULTIPART) ||
90 g_strcasecmp(parent->subtype, "signed"))
92 protocol = g_hash_table_lookup(parent->parameters, "protocol");
93 if ((protocol == NULL) || g_strcasecmp(protocol, "application/pgp-signature"))
96 /* check if mimeinfo is the first child */
97 if (parent->node->children->data != mimeinfo)
100 /* check signature */
101 signature = parent->node->children->next != NULL ?
102 (MimeInfo *) parent->node->children->next->data : NULL;
103 if (signature == NULL)
105 if ((signature->type != MIMETYPE_APPLICATION) ||
106 g_strcasecmp(signature->subtype, "pgp-signature"))
110 data = pgpmime_new_privacydata();
111 mimeinfo->privacy = (PrivacyData *) data;
113 data->done_sigtest = TRUE;
114 data->is_signed = TRUE;
119 static gint pgpmime_check_signature(MimeInfo *mimeinfo)
121 PrivacyDataPGP *data;
122 MimeInfo *parent, *signature;
128 GpgmeData sigdata, textdata;
130 g_return_val_if_fail(mimeinfo != NULL, -1);
131 g_return_val_if_fail(mimeinfo->privacy != NULL, -1);
132 data = (PrivacyDataPGP *) mimeinfo->privacy;
134 debug_print("Checking PGP/MIME signature\n");
135 parent = procmime_mimeinfo_parent(mimeinfo);
137 fp = fopen(parent->filename, "rb");
138 g_return_val_if_fail(fp != NULL, SIGNATURE_INVALID);
140 boundary = g_hash_table_lookup(parent->parameters, "boundary");
141 boundary_len = strlen(boundary);
142 while (fgets(buf, sizeof(buf), fp) != NULL)
143 if (IS_BOUNDARY(buf, boundary, boundary_len))
146 textstr = g_string_new("");
147 while (fgets(buf, sizeof(buf), fp) != NULL) {
150 if (IS_BOUNDARY(buf, boundary, boundary_len))
153 buf2 = canonicalize_str(buf);
154 g_string_append(textstr, buf2);
157 g_string_truncate(textstr, textstr->len - 2);
160 gpgme_data_new_from_mem(&textdata, textstr->str, textstr->len, 0);
161 signature = (MimeInfo *) mimeinfo->node->next->data;
162 gpgme_data_new_from_filepart(&sigdata,
169 sgpgme_verify_signature (data->ctx, sigdata, textdata);
171 gpgme_data_release(sigdata);
172 gpgme_data_release(textdata);
173 g_string_free(textstr, TRUE);
175 printf("result: %d\n", data->sigstatus);
180 static SignatureStatus pgpmime_get_sig_status(MimeInfo *mimeinfo)
182 PrivacyDataPGP *data = (PrivacyDataPGP *) mimeinfo->privacy;
184 g_return_val_if_fail(data != NULL, SIGNATURE_INVALID);
186 return sgpgme_sigstat_gpgme_to_privacy(data->sigstatus);
189 static PrivacySystem pgpmime_system = {
190 "PGP/Mime", /* name */
192 pgpmime_free_privacydata, /* free_privacydata */
194 pgpmime_is_signed, /* is_signed(MimeInfo *) */
195 pgpmime_check_signature, /* check_signature(MimeInfo *) */
196 pgpmime_get_sig_status, /* get_sig_status(MimeInfo *) */
197 NULL, /* get_sig_info_short(MimeInfo *) */
198 NULL, /* get_sig_info_full(MimeInfo *) */
201 NULL, /* is_encrypted(MimeInfo *) */
202 NULL, /* decrypt(MimeInfo *) */
207 privacy_register_system(&pgpmime_system);
212 privacy_unregister_system(&pgpmime_system);
215 #endif /* USE_GPGME */